<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .item {
            margin: 200px auto;
            width: 100px;
            height: 100px;
            background-color: brown;
        }

        .item:hover {
            cursor: grab;
            /* 滤镜 filter: brightness(90%); 
             * 调节明亮度可以快速实现一个鼠标覆盖的动态效果，无需额外制作遮罩： */
            filter: brightness(90%);
        }

        .item:active {
            cursor: grabbing;
        }
    </style>
</head>

<body>
    <div class="item">

    </div>
</body>

</html>